Domoticz

Hi

I have a robomow mower att home, the bluetooth range on that is terrible,and its supposed to be like that according to the manufacturer,its a safety thing.
I looked at the motherboard where the bluetooth board is located , searhing for some kind of antenna, but i cant find any, can someone with more knowlage look at the photo, and se of it would be possible to solder on an antenna.
and im planning that in the future be able to get this into domoticz.